A British government-commissioned report has called for a regulator to oversee online platforms such as Facebook and Google to help weed out “fake news.” Academic Frances Cairncross said tech firms should be obliged to help users understand the origin of news articles and the trustworthiness of their sources. A regulator is needed because “this task is too important to leave entirely to the judgment of commercial entities,” she said. Google said on Tuesday that it looked forward “to discussing the proposals further to ensure sustainable, high quality journalism in the UK,” AP reports. The government should also consider direct funding for local news and offer tax relief to support public-interest journalism, according to Cairncross. She was asked to investigate the sustainability of quality journalism amid declining newspaper sales and falling revenues.